Libre

Libre works can be shared both in original form and after being adapted, though there may be some conditions on their use.

There are a number of different definitions of libre, including the Open Definition and the Definition of Free Cultural Works

No matter what the definition, libre content can be shared and adapted by any person for any purpose, including commercial purposes. The only requirements are minor, and include attribution (you need to give credit to those whose work you're using) and copyleft (if you use the content in your own work, your work has to be under the same licence as the content you use).

Subcategories:

• Public domain
• Permissive
• Copyleft

Works and Sources

Works

• Piecepack ● A set of pieces you can use to play many games.
• Pixel Quest ● A simple HTML5 game where you wander around avoiding enemies.
• Pixelated New Orleans Homes ● "A collection of 100 pixelated images for you to download and use for whatever you want."
• Poetics for Cosmonauts ● A book.
• Pollies ● A generic dice-based RPG.
• Powers For Good ● 'Powers For Good is a fast-moving roleplaying game of team superheroics in the style of comic books such as Legion of Superheroes and New X-men, or TV shows like Justice League. Together with your friends you can create an entire team of superheroes in just a few minutes and leap into whatever the GM has stewing.'
• PRISM ⚡ BREAK ● 'Opt out of PRISM, the NSA’s global data surveillance program. Stop the American government from spying on you by encrypting your communications and ending your reliance on proprietary services.'
• Producing Open Source Software ● "How to Run a Successful Free Software Project"
• Project N ● A light novel.
• Project Utopia ● 'A strategy card game set in the fictional world of Project Utopia.'
• Prometheus SRD ● An open version of the character creation and advancement rules from Dungeons & Dragons 3E.
• Proprietary Games with Open Source Engines ● A useful Reddit post.
• Protei ● Open hardware to clean up oil spills.
• Providence Junction ● A Western LARP of small town secrets.
• Public Domain Textures ● What it says.
• Push ● A board game played on a chess or chequers board.
• Quad System ● An RPG.
• Queensland Government Data ● 'The Queensland Government will release as much public data as possible, free to anyone who wishes to use it. This data has been gathered using public money and is the property of the people of Queensland and so, where suitable, we will release it.'
• Quest-ions ● 'Quest-ions is a fantasy roleplaying game with a novel mechanic using tokens.'
• Quick-Play ● A diceless RPG for quick startup and rapid play.
• Quick-Play ● '[A] very simple universal system ... Meant for short games with quick startup, it is a diceless game that contains within it full character creation, conflict resolution, supernatural/superhuman abilities, and even a few optional rules – all contained in three pages.'
• Rainbow Deck ● 'The Rainbow Deck is a card game system that has a total of 162 cards.'
• Rathole Radio ● 'Rathole Radio is a fortnightly Internet radio show featuring the best in new music from around the web, with occasional interviews and exclusive live performances to boot.'
• Raven Crowking's Fantasy Game ● Raven Crowking's reworking of Dungeons & Dragons
• Realms of Wonder ● Rules-lite, classless, nostalgic RPG.
• RecordAGrave ● Photographs and transcriptions of tombstones.
• Redbox Hack ● A clever reinterpretation of fantasy gaming.
• Renaissance ● 'Renaissance is a free D100 roleplaying system designed for historical and fantasy gaming in the age of black powder weapons.'
• Return to Maniac Mansion ● A game for Jonathan Walton's Stage One.
• Revolucion ● Chart the course of any revolution, real or imagined, in any time or place.
• Right To Music ● A free, fair, independent music advocacy group.
• Right2Remix ● Advocating for legal remixing.
• Roadkill ● A short story by Leonard Kirke.
• Rookvale ● 'Rookvale is a [tabletop] game of cinematic tactical combat [with demons]'
• Runebearer ● A fantasy game which draws on several different RPG systems.
• RuneQuest ● The RuneQuest core rules.
• Ryzom Core ● The code used by the Ryzom MMORPG.
• Sacred Steel ● An RPG once lost, but capable of preservation thanks to its open licence.
• Sage ● 'Sage is a free open-source mathematics software system licensed under the GPL.'
• School Daze ● An RPG about high school.
• Science Comics! ● A comedic superheroes playset for Fiasco.
• Science Fiction Mystery ● An 11-player science fiction LARP.
• Scrabblenauts ● A game where spelling words with Scrabble tiles affects what happens in the story.
• Season of Gratitude ● Christmas songs from ccMixter.
• Second String Superheroes ● A 12-player LARP about incompetent superheroes.
• Seventh ● A fantasy role-playing game.
• Shadow of Yesterday ● A pioneering RPG where characters are defined by their Keys and Secrets.
• Shadows ● Children accompanied by their formidable Shadows.
• Shakespeare 2985 ● A "science fiction espionage murder mystery do-it-yourself alternate reality game about interpreting poetry and failing thermal dampeners."
• Sharing is Caring ● A single - remixed multiple times - released by Dan Bull. #9 in the UK Independent chart.

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Sources

• Thingiverse ● Designs for 3D printers.
• Traficantes de Sueños ● A Spanish book publisher.
• Twine Games ● Online choose your own adventure games.
• Ubuntu Free Culture Showcase ● Free culture that has been chosen by the Ubuntu community.
• Uncensored Interview ● Interviews
• (un)Common Adventure Gallery ● Collection of free-to-publish genre illustrations.
• unglue.it ● A project to crowdfund the application of Creative Commons licensing
• (un)Playable_G4mes ● 'Where game ideas come to die'
• Unseen Studio ● 'Unseen Studio is a small podcast network promoting Creative Commons culture and Open Source software. We currently have 3 podcasts; CCJam, Crivins and TuxJam.'
• Unsplash ● "Free high-resolution stock photos"
• UNZ.org ● A collection of scanned journal articles.
• US Government ● The source of a tremendous amount of public domain works.
• Valentin Champer ● A poet.
• Vimeo ● A video-hosting site.
• Vimeo ● You can search Vimeo by Creative Commons licence.
• Wellcome Images ● ' Thousands of years of visual culture made free through Wellcome Images'
• White House ● The website of the President of the United States.
• Wikidata ● 'Wikidata is a free knowledge base that can be read and edited by humans and machines alike.'
• Wikimedia Foundation ● A free culture project that gathers a number of wikis.
• Wikinews ● "The Wikinews project is a free content news source of the Wikimedia Foundation that seeks to provide content, free of charge, where everyone is invited to contribute reports about events large and small, either from direct experience, or summarized from elsewhere."
• Wikipedia List of Game Engines ● A list of game engines on Wikipedia.
• Wiley Open Access ● A variety of journals published by Wiley.
• Wizards of the Coast ● A game publisher.
• World Bank Open Knowledge Repository ● "The World Bank Open Knowledge Repository (OKR) is The World Bank’s official open access repository for its research outputs and knowledge products."
• WPClipart ● A collection of public domain clipart.
• Yanone ● A young German jack-of-all-trades.
• YouTube ● A video site.
• Zadkiel ● 'Zadkiel are three piece Alternative-Rock/Indie band from Nottingham.'
• Zenhabits ● 'Zen Habits is about finding simplicity in the daily chaos of our lives.'
• zero-project ● A collection of musical compositions, audiobooks and songs.

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Licences

• Academic Free License ● A libre licence.
• Apache License ● A permissive free software licence.
• BSD License ● Permissive free software licences.
• CERN Open Hardware License ● 'In the spirit of knowledge sharing and dissemination, the CERN Open Hardware Licence (CERN OHL) governs the use, copying, modification and distribution of hardware design documentation, and the manufacture and distribution of products.'
• COPYPASTE License ● A very simple public domain licence.
• Creative Commons ● A non-profit organisation devoted to increasing the number of works available for all to share and adapt.
• Creative Commons Attribution ● A Creative Commons licence which allows copying provided credit is given.
• Creative Commons Attribution-ShareAlike ● A Creative Commons licence which allows copying provided credit is given and adaptations fall under the same licence.
• Creative Commons Copyright-Only Dedication/Public Domain Certification ● A multipurpose and now retired licence.
• Creative Commons ShareAlike ● A retired Creative Commons licence.
• Creative Commons Zero ● A Creative Commons licence which allows copying under any circumstances.
• Free Art License ● A copyleft licence designed specifically for art.
• Free Software Foundation ● A foundation to encourage the use of free software licences.
• Give It Your Own License, License ● Effectively a public domain licence.
• Give It Your Own License, License ● A public domain licence.
• GNU Affero General Public License ● A copyleft software licence.
• GNU Free Documentation License ● A copyleft licence for manuals and software guides.
• GNU General Public License ● A copyleft licence designed for software.
• GNU Lesser General Public License ● A free software licence.
• Jenny Everywhere Declaration ● A declaration that makes a character free for others to use.
• MIT License ● A permissive free software licence from MIT.
• Open Data Commons Attribution ● A permissive libre licence for data.
• Open Data Commons Open Database License ● A copyleft licence for databases.
• Open Database Commons ● 'Open Data Commons exists to provide legal solutions for open data.'
• Open Game License ● A copyleft licence designed for games but usable elsewhere.
• Open Government License ● A permissive licence designed by the British Government.
• Open Hardware License ● A couple of libre hardware licences.
• Open Publication License ● A retired permissive licence.
• Open Web Foundation Final Specification Agreement ● An attribution licence with a patent protection section.
• Open Works License ● A permissive licence.
• Public Domain Mark ● A certification of public domain status.
• SIL Open Font License ● A copyleft font licence.
• TAPR Open Hardware License ● 'The TAPR Open Hardware License is TAPR's contribution to the community of Open Hardware developers.'
• The zlib/libpng License ● A permissive software licence.

• Basic Dungeons & Dragons ● The mechanics of original and basic D&D.
• @ccess ● An OKFN project to encourage libre open access.
• CC-PRO ● A rebranding of the CC BY-SA licence to emphasise its value to professionals.
• d20 System ● The roleplaying system which first appeared in Dungeons & Dragons 3E.
• FATE ● A game system based on the mechanic: dice roll + invoked and tagged Aspects.
• Liberated Pixel Cup ● "Liberated Pixel Cup is a two-part competition: make a bunch of awesome free culture licensed artwork, and then program a bunch of free software games that use it."
• LibrePlanet Gaming Collective ● The LibrePlanet Gaming Collective is a group of free software activists organized around their enthusiasm for video games.
• Rusałka ● A "GMless game of tragic fairy tales"
• Saga Machine ● 'Saga Machine is a brand new tabletop role-playing system by the Tab Creations Collective.'
• The First 100 Days of Government ● The Abbott Liberal Government's assessment of what it has achieved in its first 100 days.
• The Public Domain Game Jam ● A competition to create a game inspired by the public domain.
• The Public Domain Manifesto ● A statement on the value of the public domain.
• Who Needs Access? You Need Access ● An OKFN project to increase open access.